{"id":1375,"date":"2026-09-08T02:45:45","date_gmt":"2026-09-08T02:45:45","guid":{"rendered":"https:\/\/boom-cylinders.com\/?post_type=product&p=1375"},"modified":"2026-09-08T03:32:19","modified_gmt":"2026-09-08T03:32:19","slug":"upper-leveling-cylinder-hcyy11112008","status":"publish","type":"product","link":"https:\/\/boom-cylinders.com\/pl\/product\/upper-leveling-cylinder-hcyy11112008\/","title":{"rendered":"Aerial Work Platform Upper Leveling Cylinder (60mm Stroke)"},"content":{"rendered":"
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Aerial Work Platform Components \u00b7 United Kingdom<\/p>\n

Aerial Work Platform Upper Leveling Cylinder \u2014 60mm Stroke (HCYY11112008)<\/h2>\n

Engineered for precision platform stability at height, the HCYY11112008 upper leveling cylinder delivers controlled 60mm actuation with a 25 MPa working pressure rating \u2014 purpose-built for scissor lifts, boom platforms, and articulated aerial work vehicles operating in the UK’s construction, utilities, and industrial maintenance sectors.<\/p>\n<\/div>\n

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\u2709 Get a Quote \u2014 sales@boom-cylinders.com<\/a><\/div>\n

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What Is an Upper Leveling Cylinder on an Aerial Work Platform?<\/h2>\n

\"AerialOn any aerial work platform \u2014 whether a scissor lift, knuckle boom, or straight-boom machine \u2014 the upper leveling cylinder is the hydraulic actuator responsible for keeping the work basket or platform deck absolutely horizontal regardless of the boom angle. Without it, operators working at 12 or 20 metres above ground would find the platform tilting as the boom elevates, creating an unacceptable safety risk and breaching UK Work at Height Regulations 2005.<\/p>\n

The HCYY11112008 upper leveling cylinder achieves this through a compact \u03a663 \u00d7 \u03a645 \u00d7 60mm geometry that integrates into the leveling linkage mounted at the top of the boom structure. As the main boom cylinder extends or retracts, a dedicated hydraulic circuit simultaneously commands this upper leveling cylinder to compensate, maintaining the platform’s angular position within a fraction of a degree. The result is continuous, passive leveling with no manual operator intervention \u2014 critical for UK construction sites, telecom tower maintenance, and industrial facility upkeep where sustained aerial work is routine.<\/p>\n<\/div>\n

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Dane techniczne<\/h2>\n
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Upper Leveling Cylinder<\/th>\n<\/tr>\n
Model cylindra<\/th>\nSpecyfikacje<\/th>\nCi\u015bnienie robocze<\/th>\nMaksymalne ci\u015bnienie wytrzymywane<\/th>\nWycieczka (mm)<\/th>\nOdleg\u0142o\u015b\u0107 instalacji (mm)<\/th>\nWaga<\/th>\n<\/tr>\n<\/thead>\n
HCYY11112008<\/td>\n\u03a663 \u00d7 \u03a645 \u00d7 60<\/td>\n25 MPa<\/td>\n30 MPa<\/td>\n60<\/td>\n375<\/td>\n16 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

All dimensions in mm unless otherwise stated. Data sourced from factory test records and product datasheet.<\/p>\n<\/div>\n

\"Upper<\/div>\n

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Working Principle, Materials & Application Scenarios<\/h2>\n
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How It Works<\/h3>\n

The upper leveling cylinder operates as part of a closed-loop parallelogram linkage. As hydraulic oil enters the rod-side port, the piston rod retracts across its 60mm stroke, pulling the platform linkage to counteract boom elevation. The 25 MPa working pressure is maintained by the machine’s dedicated leveling circuit, which monitors boom position via a sensor and modulates flow through a proportional valve. Peak transient loads \u2014 such as those from sudden boom stops \u2014 are safely absorbed up to the 30 MPa maximum withstand pressure, ensuring no seal failure or rod deformation under UK field conditions.<\/p>\n<\/div>\n

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Materials & Construction<\/h3>\n

The cylinder barrel is machined from seamless cold-drawn steel tubing with an internal honing finish of Ra 0.4 \u00b5m, minimising seal wear over extended service cycles. The piston rod is manufactured from 45# high-carbon steel and hard-chrome plated to a minimum thickness of 25 \u00b5m, providing corrosion resistance essential for outdoor aerial platforms operating across the UK’s variable climate. Internal sealing uses a compound of polyurethane lip seals and PTFE wear rings \u2014 compatible with standard mineral hydraulic oil (ISO VG 46) commonly specified by British OEMs. The end caps are forged steel, machined to exact tolerances and pressure-tested at the factory before dispatch.<\/p>\n<\/div>\n

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Application Scenarios<\/h3>\n

The HCYY11112008 upper leveling cylinder is specified across a broad range of aerial work vehicle types deployed throughout England, Scotland, Wales, and Northern Ireland. Primary platforms include articulated knuckle boom lifts (8\u201320 m working height), telescopic straight boom platforms used by utilities contractors, and spider-type tracked aerial platforms for confined or uneven terrain. Beyond construction, the cylinder is extensively used in UK facility management \u2014 including maintenance of warehouses, railway overhead line structures, bridge inspection rigs, and wind farm nacelle access platforms. Its compact 375mm installation distance makes it suitable for space-constrained boom assemblies where envelope sizing is critical.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Key Product Advantages<\/h2>\n
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High Pressure Integrity<\/strong><\/p>\n

Rated to 25 MPa continuous working pressure and proof-tested to 30 MPa, the cylinder maintains zero leakage across the full stroke envelope.<\/p>\n<\/div>\n

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Long Service Life<\/strong><\/p>\n

Hard-chrome rod surface and compound seal package together extend mean time between overhauls beyond 5,000 operating hours under typical UK field conditions.<\/p>\n<\/div>\n

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Compact Envelope<\/strong><\/p>\n

At just 375mm installation distance and 16kg, the HCYY11112008 slots into existing boom assemblies without requiring structural modifications or counterweight re-balancing.<\/p>\n<\/div>\n

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All-Climate Sealing<\/strong><\/p>\n

Polyurethane and PTFE compound seals maintain full function from -20\u00b0C to +80\u00b0C, covering the full temperature range encountered on British outdoor job sites through winter.<\/p>\n<\/div>\n

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Factory-Tested & Documented<\/strong><\/p>\n

Every unit undergoes 100% pressure cycle testing at factory before shipment, with full test records provided \u2014 supporting LOLER compliance documentation for UK operators.<\/p>\n<\/div>\n

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Drop-In Replacement Compatible<\/strong><\/p>\n

Standard pin-joint interface dimensions are kept consistent with common OEM specifications, making the HCYY11112008 a practical service replacement across multiple platform brands.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Aerial Work Vehicle Cylinder Series<\/h2>\n

The upper leveling cylinder belongs to a comprehensive cylinder series developed specifically for aerial work platforms. Browse the complete range to find cylinders for boom extension, slewing, basket tilting, and stabiliser legs \u2014 all engineered to the same pressure and quality standards:<\/p>\n

\"Cylinder<\/div>\n

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\ud83d\ude97<\/a><\/div>\n

Si\u0142ownik teleskopowy do w\u00f3zka wid\u0142owego z podno\u015bnikiem hakowym \u2014 \u03a6100 mm, dwustopniowy<\/strong><\/a><\/p>\n

Two-stage telescopic cylinder for hook-lift truck sub-frame actuation. 100mm bore, compact collapse length.<\/p>\n

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\ud83d\udd04<\/a><\/div>\n

Si\u0142ownik ramienia wychylnego w\u00f3zka wid\u0142owego z hakiem \u2014 \u03a6160 mm, skok 1925 mm<\/strong><\/a><\/p>\n

Large-bore swing arm cylinder rated for heavy hook-lift truck chassis; 160mm bore, 1925mm stroke.<\/p>\n

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Customer Success Story<\/h2>\n

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\ud83c\uddec\ud83c\udde7 United Kingdom \u2014 Plant Hire & Access Equipment Fleet Operator<\/p>\n

Birmingham, England \u00b7 Fleet Maintenance & Hydraulic Servicing \u00b7 2024<\/p>\n

\"Aerial<\/p>\n

A mid-sized plant hire company based in Birmingham operating a mixed fleet of 34 articulated boom platforms encountered repeated leveling cylinder failures on their older 12-metre units. The original OEM cylinders were showing rod seal leakage after approximately 2,800 hours \u2014 well below the expected service interval \u2014 causing unplanned downtime during active contracts with a rail infrastructure client in the West Midlands.<\/p>\n

Following contact through our UK distribution channel, the fleet manager requested technical data sheets and a sample unit of the HCYY11112008 upper leveling cylinder for bench evaluation. After a three-week fit and trial on two boom platforms, the engineering team confirmed dimensional compatibility and observed no measurable rod seal weep at the same pressures that had caused the OEM failures. The fleet manager subsequently placed an initial order of 18 units to complete a rolling replacement programme across the fleet.<\/p>\n

Twelve months post-installation, the company reported zero hydraulic-related stoppages on the replaced units, and the cylinders had accumulated over 3,200 hours without any seal intervention. The procurement team cited competitive per-unit pricing, consistent lead times from port of Felixstowe, and the availability of full factory test certificates as the primary reasons for continuing to source replacement cylinders through our network.<\/p>\n<\/div>\n

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“We’ve run these leveling cylinders across our 12-metre boom fleet for over a year now. Not a single seal failure. The fit was straightforward and the test certs made our LOLER paperwork easy.”<\/p>\n

\u2014 Plant Hire Fleet Manager, Birmingham, UK<\/p>\n<\/div>\n

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“Sourcing hydraulic cylinders for specialist aerial platforms used to mean long waits or expensive OEM pricing. These units arrived on the agreed schedule, the quality is visibly high, and the pricing made the procurement decision simple.”<\/p>\n

\u2014 Procurement Manager, Utilities Access Contractor, Leeds, UK<\/p>\n<\/div>\n

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“The technical support team responded within hours when I asked about port sizing compatibility. That level of pre-sales engineering support is rare at this price point. The cylinders themselves have been solid.”<\/p>\n

\u2014 Service Engineer, Access Platform OEM, Glasgow, Scotland<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Factory Capabilities & Custom Cylinder Solutions<\/h2>\n

Our manufacturing facility operates CNC honing lines, deep-hole boring machines, and automated sealing assembly cells \u2014 allowing us to hold bore tolerances of H7 across the full range of cylinder bores. For UK aerial platform OEMs and specialist vehicle builders, we offer a full bespoke cylinder design and manufacture service. Whether you need a modified port location, a non-standard stroke length, a different rod end geometry (clevis, threaded, flanged), or a special surface treatment for corrosive environments, our engineering team can develop and validate a solution within your project timeline.<\/p>\n

We carry ISO 9001-certified quality management across all production stages and routinely supply cylinders with full material traceability documentation, hydrostatic test reports, and dimensional inspection certificates \u2014 documentation sets increasingly required by UK plant hire companies managing LOLER and PSSR compliance obligations. Minimum order quantities for standard catalogue items are flexible, and prototype quantities for custom designs can be agreed during the enquiry stage.<\/p>\n

Uzyskaj wycen\u0119 \u2014 sales@boom-cylinders.com<\/a><\/div>\n<\/div>\n

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Cz\u0119sto zadawane pytania<\/h2>\n

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\nWhat is the typical price or cost of an upper leveling cylinder for an aerial work platform supplier in the UK?<\/summary>\n
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Pricing for upper leveling cylinders varies depending on specification, order quantity, and delivery requirements. For the HCYY11112008 specifically, we recommend contacting our sales team at sales@boom-cylinders.com for a current CIF or DDP quotation to your UK address. We offer volume pricing tiers from single units through to full fleet blanket orders, and can provide indicative pricing within one working day of receiving your enquiry with part number and quantity confirmed.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhich aerial work platform models in the UK are compatible with the HCYY11112008 upper leveling cylinder and what are the installation dimensions?<\/summary>\n
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The HCYY11112008 has a \u03a663mm bore, \u03a645mm rod, 60mm stroke, and 375mm installation distance between pin centres. This geometry is compatible with a range of 10\u201316 metre articulated boom platforms from various manufacturers. To confirm fit on a specific machine model, we recommend sharing the existing cylinder’s dimensional drawing or the OEM part number \u2014 our engineers can cross-reference and confirm compatibility or advise on the closest available specification. Send your details to sales@boom-cylinders.com.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nHow long does it take to get an aerial work platform leveling cylinder delivered to a construction site in England or Scotland?<\/summary>\n
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For standard in-stock units, sea freight to UK ports (Felixstowe, Southampton) typically takes 28\u201335 days from order confirmation, with air freight options available at shorter notice for urgent maintenance situations. We recommend UK-based plant hire companies maintain a small stock of critical cylinders \u2014 we can advise on minimum stockholding quantities based on your fleet size to avoid unplanned downtime. Express air dispatch is available for emergency situations; contact us directly to discuss turnaround options.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhat documentation comes with the upper leveling cylinder to support LOLER compliance inspections for UK aerial work platforms?<\/summary>\n
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Each HCYY11112008 cylinder is dispatched with a factory hydrostatic pressure test certificate (showing test pressure, duration, and pass\/fail result), a dimensional inspection report, and material traceability documentation for the barrel, rod, and end-cap forgings. These documents are structured to support LOLER examination reports and PSSR written schemes of examination, which UK operators are legally required to maintain for lifting equipment and pressure systems. Additional documentation \u2014 such as FEA reports or third-party inspection records \u2014 can be arranged on request for OEM or public-sector supply contracts.<\/p>\n<\/div>\n<\/details>\n<\/div>\n

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\nWhere can I find a reliable supplier for aerial platform upper leveling cylinders in the UK with competitive pricing and short lead times?<\/summary>\n
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Boom-cylinders.com supplies aerial work platform hydraulic cylinders \u2014 including the HCYY11112008 upper leveling cylinder \u2014 directly to UK plant hire companies, OEM assembly operations, and hydraulic service workshops. We combine factory-direct pricing with full technical support and documentation. Enquiries can be sent to sales@boom-cylinders.com, and we typically respond with a formal quotation within one business day. For first-time buyers, sample units are available to allow bench evaluation before committing to a larger order.<\/p>\n<\/div>\n<\/details>\n<\/div>\n<\/div>\n

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Ready to Source Aerial Platform Leveling Cylinders for Your UK Fleet?<\/h3>\n

Send us your part number, fleet size, and delivery location. We’ll respond with a detailed quotation, compatibility confirmation, and lead time \u2014 typically within one business day.<\/p>\n

\u2709 Get a Quote Now<\/a><\/p>\n<\/div>\n<\/div>\n

edytuj przez gzl<\/p>","protected":false},"excerpt":{"rendered":"

Aerial Work Platform Upper Leveling Cylinder HCYY11112008 \u2014 \u03a663\u00d7\u03a645\u00d760mm, 60mm stroke, 25 MPa working pressure. Factory-tested, LOLER-documentation supplied. Trusted by UK plant hire companies and aerial platform OEMs. Request a quote: sales@boom-cylinders.com<\/a><\/p>","protected":false},"featured_media":1378,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[1080],"product_tag":[],"class_list":["post-1375","product","type-product","status-publish","has-post-thumbnail","product_cat-cylinder-series-for-aerial-work-vehicle","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/product\/1375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/comments?post=1375"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/media\/1378"}],"wp:attachment":[{"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/media?parent=1375"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/product_brand?post=1375"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/product_cat?post=1375"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/boom-cylinders.com\/pl\/wp-json\/wp\/v2\/product_tag?post=1375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}